Strap for face mask



FIG. 1 is a front elevation view of a strap for face mask showing my new design,

FIG. 2 is a front perspective view thereof,

FIG. 3 is another front perspective view thereof,

FIG. 4 is a rear elevation view thereof,

FIG. 5 is a rear perspective view thereof; and,

FIG. 6 is another rear perspective view thereof. 

CLAIM The ornamental design for a strap for face mask, as shown and described. 